Environmental Guard Cleaning - MSA PrimaX IR Manuel D'utilisation

Maintenance
When the cleaning process is complete, be sure to remove all objects
from the light path.
When exiting the Cleaning Mode, the unit returns to normal operation. Note that re-
sidual cleaning fluids may result in an elevated signal until completely dry.
(7) Inspect the environmental guard for any blockages, then replace the environ-
mental guard on sensor.
After cleaning the windows, it is advisable to check the sensor's response

to both zero and calibration gas.
CAUTION
Do not place foreign objects in the sensor's analytical region [except per
the Cleaning Procedure above]; otherwise, the infrared beam can be
partially blocked, causing the sensor to generate false readings. All ob-
jects must be removed from the sensor's analytical region for it to func-
tion properly.
CAUTION
If water or isopropyl alcohol is used to clean the sensor's windows, any
residue from the cleaning procedure must be completely dissipated be-
fore returning the unit to service. Checking the sensor's response to zero
gas is the best way to purge residual cleaning materials from the sensor.
Ensure that the sensor's reading is stable before zeroing or calibrating
the sensor [ chapter 4].
FAILURE TO FOLLOW THE ABOVE CAN R ESULT IN PRODUCT DAMAGE AND/
OR AN UNSAFE CONDITION.
5.5

Environmental Guard Cleaning

It is good maintenance practice to occasionally clean the environmental guard by
removing it and rinsing it with water, or using compressed air to clean it [ fig. 20].
Always reinstall the environmental guard for normal operations to provide protec-
tion against damage to the mirror and windows, and to help prevent dust from ac-
cumulating on the optical surfaces.
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PrimaX IR
MSA
US